void QgsGPSInformationWidget::disconnectGps()
{
if ( mLogFile && mLogFile->isOpen() )
{
disconnect( mNmea, &QgsGPSConnection::nmeaSentenceReceived, this, &QgsGPSInformationWidget::logNmeaSentence );
mLogFile->close();
delete mLogFile;
mLogFile = nullptr;
}
QgsApplication::gpsConnectionRegistry()->unregisterConnection( mNmea );
delete mNmea;
mNmea = nullptr;
if ( mpMapMarker ) // marker should not be shown on GPS disconnected - not current position
{
delete mpMapMarker;
mpMapMarker = nullptr;
}
mGPSPlainTextEdit->appendPlainText( tr( "Disconnected..." ) );
mConnectButton->setChecked( false );
mConnectButton->setText( tr( "&Connect" ) );
showStatusBarMessage( tr( "Disconnected from GPS device." ) );
setStatusIndicator( NoData );
}
QgsGPSInformationWidget::QgsGPSInformationWidget( QgsMapCanvas * thepCanvas, QWidget * parent, Qt::WindowFlags f )
: QWidget( parent, f )
, mNmea( 0 )
, mpCanvas( thepCanvas )
{
setupUi( this );
mpLastLayer = 0;
mLastGpsPosition = QgsPoint( 0.0, 0.0 );
mpMapMarker = 0;
mpRubberBand = 0;
populateDevices();
QWidget * mpHistogramWidget = mStackedWidget->widget( 1 );
#if (!WITH_QWTPOLAR)
mBtnSatellites->setVisible( false );
#endif
//
// Set up the graph for signal strength
//
mpPlot = new QwtPlot( mpHistogramWidget );
mpPlot->setAutoReplot( false ); // plot on demand
//mpPlot->setTitle(QObject::tr("Signal Status"));
//mpPlot->insertLegend(new QwtLegend(), QwtPlot::BottomLegend);
// Set axis titles
//mpPlot->setAxisTitle(QwtPlot::xBottom, QObject::tr("Satellite"));
//mpPlot->setAxisTitle(QwtPlot::yLeft, QObject::tr("Value"));
mpPlot->setAxisScale( QwtPlot::xBottom, 0, 20 );
mpPlot->setAxisScale( QwtPlot::yLeft, 0, 100 ); // max is 50dB SNR, I believe - SLM
// add a grid
//QwtPlotGrid * mypGrid = new QwtPlotGrid();
//mypGrid->attach( mpPlot );
//display satellites first
mpCurve = new QwtPlotCurve();
mpCurve->setRenderHint( QwtPlotItem::RenderAntialiased );
mpCurve->setPen( QPen( Qt::blue ) );
mpCurve->setBrush( QBrush( Qt::blue ) );
mpPlot->enableAxis( QwtPlot::yLeft, false );
mpPlot->enableAxis( QwtPlot::xBottom, false );
mpCurve->attach( mpPlot );
//ensure all children get removed
mpPlot->setAutoDelete( true );
QVBoxLayout *mpHistogramLayout = new QVBoxLayout( mpHistogramWidget );
mpHistogramLayout->setContentsMargins( 0, 0, 0, 0 );
mpHistogramLayout->addWidget( mpPlot );
mpHistogramWidget->setLayout( mpHistogramLayout );
//
// Set up the polar graph for satellite pos
//
#if (WITH_QWTPOLAR)
QWidget * mpPolarWidget = mStackedWidget->widget( 2 );
mpSatellitesWidget = new QwtPolarPlot( /*QwtText( tr( "Satellite View" ), QwtText::PlainText ),*/ mpPolarWidget ); // possible title for graph removed for now as it is too large in small windows
mpSatellitesWidget->setAutoReplot( false ); // plot on demand (after all data has been handled)
mpSatellitesWidget->setPlotBackground( Qt::white );
// scales
mpSatellitesWidget->setScale( QwtPolar::ScaleAzimuth,
360, //min - reverse the min/max values to get compass orientation - increasing clockwise
0, //max
90 //interval - just show cardinal and intermediate (NE, N, NW, etc.) compass points (in degrees)
);
mpSatellitesWidget->setAzimuthOrigin( M_PI_2 ); // to get compass orientation - need to rotate 90 deg. ccw; this is in Radians (not indicated in QwtPolarPlot docs)
// mpSatellitesWidget->setScaleMaxMinor( QwtPolar::ScaleRadius, 2 ); // seems unnecessary
mpSatellitesWidget->setScale( QwtPolar::ScaleRadius,
90, //min - reverse the min/max to get 0 at edge, 90 at center
0, //max
45 //interval
);
// grids, axes
QwtPolarGrid * mypSatellitesGrid = new QwtPolarGrid();
mypSatellitesGrid->setGridAttribute( QwtPolarGrid::AutoScaling, false ); // This fixes the issue of autoscaling on the Radius grid. It is ON by default AND is separate from the scaleData.doAutoScale in QwtPolarPlot::setScale(), etc. THIS IS VERY TRICKY!
mypSatellitesGrid->setPen( QPen( Qt::black ) );
QPen minorPen( Qt::gray ); // moved outside of for loop; NOTE setting the minor pen isn't necessary if the minor grids aren't shown
for ( int scaleId = 0; scaleId < QwtPolar::ScaleCount; scaleId++ )
{
//mypSatellitesGrid->showGrid( scaleId );
//mypSatellitesGrid->showMinorGrid(scaleId);
mypSatellitesGrid->setMinorGridPen( scaleId, minorPen );
}
// mypSatellitesGrid->setAxisPen( QwtPolar::AxisAzimuth, QPen( Qt::black ) );
mypSatellitesGrid->showAxis( QwtPolar::AxisAzimuth, true );
mypSatellitesGrid->showAxis( QwtPolar::AxisLeft, false ); //alt axis
mypSatellitesGrid->showAxis( QwtPolar::AxisRight, false );//alt axis
mypSatellitesGrid->showAxis( QwtPolar::AxisTop, false );//alt axis
mypSatellitesGrid->showAxis( QwtPolar::AxisBottom, false );//alt axis
mypSatellitesGrid->showGrid( QwtPolar::ScaleAzimuth, false ); // hide the grid; just show ticks at edge
mypSatellitesGrid->showGrid( QwtPolar::ScaleRadius, true );
// mypSatellitesGrid->showMinorGrid( QwtPolar::ScaleAzimuth, true );
mypSatellitesGrid->showMinorGrid( QwtPolar::ScaleRadius, true ); // for 22.5, 67.5 degree circles
mypSatellitesGrid->attach( mpSatellitesWidget );
//QwtLegend *legend = new QwtLegend;
//mpSatellitesWidget->insertLegend(legend, QwtPolarPlot::BottomLegend);
QVBoxLayout *mpPolarLayout = new QVBoxLayout( mpPolarWidget );
mpPolarLayout->setContentsMargins( 0, 0, 0, 0 );
mpPolarLayout->addWidget( mpSatellitesWidget );
mpPolarWidget->setLayout( mpPolarLayout );
// replot on command
mpSatellitesWidget->replot();
#endif
mpPlot->replot();
// Restore state
QSettings mySettings;
mGroupShowMarker->setChecked( mySettings.value( "/gps/showMarker", "true" ).toBool() );
mSliderMarkerSize->setValue( mySettings.value( "/gps/markerSize", "12" ).toInt() );
mSpinTrackWidth->setValue( mySettings.value( "/gps/trackWidth", "2" ).toInt() );
mTrackColor = mySettings.value( "/gps/trackColor", QColor( Qt::red ) ).value<QColor>();
QString myPortMode = mySettings.value( "/gps/portMode", "scanPorts" ).toString();
mSpinMapExtentMultiplier->setValue( mySettings.value( "/gps/mapExtentMultiplier", "50" ).toInt() );
mDateTimeFormat = mySettings.value( "/gps/dateTimeFormat", "" ).toString(); // zero-length string signifies default format
mGpsdHost->setText( mySettings.value( "/gps/gpsdHost", "localhost" ).toString() );
mGpsdPort->setText( mySettings.value( "/gps/gpsdPort", 2947 ).toString() );
mGpsdDevice->setText( mySettings.value( "/gps/gpsdDevice" ).toString() );
//port mode
if ( myPortMode == "scanPorts" )
{
mRadAutodetect->setChecked( true );
}
else if ( myPortMode == "internalGPS" )
{
mRadInternal->setChecked( true );
}
else if ( myPortMode == "explicitPort" )
{
mRadUserPath->setChecked( true );
}
else if ( myPortMode == "gpsd" )
{
mRadGpsd->setChecked( true );
}
//disable the internal port method if build is without QtLocation
#ifndef HAVE_QT_MOBILITY_LOCATION
mRadInternal->setDisabled( true );
mRadAutodetect->setChecked( true );
#endif
//auto digitising behaviour
mCbxAutoAddVertices->setChecked( mySettings.value( "/gps/autoAddVertices", "false" ).toBool() );
mCbxAutoCommit->setChecked( mySettings.value( "/gps/autoCommit", "false" ).toBool() );
//pan mode
QString myPanMode = mySettings.value( "/gps/panMode", "recenterWhenNeeded" ).toString();
if ( myPanMode == "none" )
{
radNeverRecenter->setChecked( true );
}
else if ( myPanMode == "recenterAlways" )
{
radRecenterMap->setChecked( true );
}
else
{
radRecenterWhenNeeded->setChecked( true );
}
mWgs84CRS.createFromOgcWmsCrs( "EPSG:4326" );
mBtnDebug->setVisible( mySettings.value( "/gps/showDebug", "false" ).toBool() ); // use a registry setting to control - power users/devs could set it
// status = unknown
setStatusIndicator( NoData );
//SLM - added functionality
mLogFile = 0;
connect( QgisApp::instance()->layerTreeView(), SIGNAL( currentLayerChanged( QgsMapLayer* ) ),
this, SLOT( updateCloseFeatureButton( QgsMapLayer* ) ) );
mStackedWidget->setCurrentIndex( 3 ); // force to Options
mBtnPosition->setFocus( Qt::TabFocusReason );
}
void QgsGPSInformationWidget::displayGPSInformation( const QgsGPSInformation &info )
{
QVector<QPointF> data;
// set validity flag and status from GPS data
// based on GGA, GSA and RMC sentences - the logic does not require all
bool validFlag = false; // true if GPS indicates position fix
FixStatus fixStatus = NoData;
// no fix if any of the three report bad; default values are invalid values and won't be changed if the corresponding NMEA msg is not received
if ( info.status == 'V' || info.fixType == NMEA_FIX_BAD || info.quality == 0 ) // some sources say that 'V' indicates position fix, but is below acceptable quality
{
fixStatus = NoFix;
}
else if ( info.fixType == NMEA_FIX_2D ) // 2D indication (from GGA)
{
fixStatus = Fix2D;
validFlag = true;
}
else if ( info.status == 'A' || info.fixType == NMEA_FIX_3D || info.quality > 0 ) // good
{
fixStatus = Fix3D;
validFlag = true;
}
else // unknown status (not likely)
{
}
// set visual status indicator -- do only on change of state
if ( fixStatus != mLastFixStatus )
{
setStatusIndicator( fixStatus );
}
if ( mStackedWidget->currentIndex() == 1 && info.satInfoComplete ) //signal
{
mpPlot->setAxisScale( QwtPlot::xBottom, 0, info.satellitesInView.size() );
} //signal
#ifdef WITH_QWTPOLAR
if ( mStackedWidget->currentIndex() == 2 && info.satInfoComplete ) //satellites
{
while ( !mMarkerList.isEmpty() )
{
delete mMarkerList.takeFirst();
}
} //satellites
#endif
if ( mStackedWidget->currentIndex() == 4 ) //debug
{
mGPSPlainTextEdit->clear();
} //debug
for ( int i = 0; i < info.satellitesInView.size(); ++i ) //satellite processing loop
{
QgsSatelliteInfo currentInfo = info.satellitesInView.at( i );
if ( mStackedWidget->currentIndex() == 1 && info.satInfoComplete ) //signal
{
data << QPointF( i, 0 );
data << QPointF( i, currentInfo.signal );
data << QPointF( i + 1, currentInfo.signal );
data << QPointF( i + 1, 0 );
} //signal
if ( mStackedWidget->currentIndex() == 2 && info.satInfoComplete ) //satellites
{
QColor bg( Qt::white ); // moved several items outside of the following if block to minimize loop time
bg.setAlpha( 200 );
QColor myColor;
// Add a marker to the polar plot
if ( currentInfo.id > 0 ) // don't show satellite if id=0 (no satellite indication)
{
#ifdef WITH_QWTPOLAR
QwtPolarMarker *mypMarker = new QwtPolarMarker();
#if (QWT_POLAR_VERSION<0x010000)
mypMarker->setPosition( QwtPolarPoint( currentInfo.azimuth, currentInfo.elevation ) );
#else
mypMarker->setPosition( QwtPointPolar( currentInfo.azimuth, currentInfo.elevation ) );
#endif
#endif
if ( currentInfo.signal < 30 ) //weak signal
{
myColor = Qt::red;
}
else
{
myColor = Qt::black; //strong signal
}
#ifdef WITH_QWTPOLAR
QBrush symbolBrush( Qt::black );
QSize markerSize( 9, 9 );
QBrush textBgBrush( bg );
#if (QWT_POLAR_VERSION<0x010000)
mypMarker->setSymbol( QwtSymbol( QwtSymbol::Ellipse,
symbolBrush, QPen( myColor ), markerSize ) );
#else
mypMarker->setSymbol( new QwtSymbol( QwtSymbol::Ellipse,
symbolBrush, QPen( myColor ), markerSize ) );
#endif
mypMarker->setLabelAlignment( Qt::AlignHCenter | Qt::AlignTop );
QwtText text( QString::number( currentInfo.id ) );
text.setColor( myColor );
text.setBackgroundBrush( textBgBrush );
mypMarker->setLabel( text );
mypMarker->attach( mpSatellitesWidget );
mMarkerList << mypMarker;
#endif
} // currentInfo.id > 0
} //satellites
} //satellite processing loop
if ( mStackedWidget->currentIndex() == 1 && info.satInfoComplete ) //signal
{
mpCurve->setSamples( data );
mpPlot->replot();
} //signal
#ifdef WITH_QWTPOLAR
if ( mStackedWidget->currentIndex() == 2 && info.satInfoComplete ) //satellites
{
mpSatellitesWidget->replot();
} //satellites
#endif
if ( validFlag )
{
validFlag = info.longitude >= -180.0 && info.longitude <= 180.0 && info.latitude >= -90.0 && info.latitude <= 90.0;
}
QgsPointXY myNewCenter;
if ( validFlag )
{
myNewCenter = QgsPointXY( info.longitude, info.latitude );
}
else
{
myNewCenter = mLastGpsPosition;
}
if ( mStackedWidget->currentIndex() == 0 ) //position
{
mTxtLatitude->setText( QString::number( info.latitude, 'f', 8 ) );
mTxtLongitude->setText( QString::number( info.longitude, 'f', 8 ) );
mTxtAltitude->setText( tr( "%1 m" ).arg( info.elevation, 0, 'f', 1 ) ); // don't know of any GPS receivers that output better than 0.1 m precision
if ( mDateTimeFormat.isEmpty() )
{
mTxtDateTime->setText( info.utcDateTime.toString( Qt::TextDate ) ); // default format
}
else
{
mTxtDateTime->setText( info.utcDateTime.toString( mDateTimeFormat ) ); //user specified format string for testing the millisecond part of time
}
mTxtSpeed->setText( tr( "%1 km/h" ).arg( info.speed, 0, 'f', 1 ) );
mTxtDirection->setText( QString::number( info.direction, 'f', 1 ) + QStringLiteral( "°" ) );
mTxtHdop->setText( QString::number( info.hdop, 'f', 1 ) );
mTxtVdop->setText( QString::number( info.vdop, 'f', 1 ) );
mTxtPdop->setText( QString::number( info.pdop, 'f', 1 ) );
mTxtHacc->setText( QString::number( info.hacc, 'f', 1 ) + "m" );
mTxtVacc->setText( QString::number( info.vacc, 'f', 1 ) + "m" );
mTxtFixMode->setText( info.fixMode == 'A' ? tr( "Automatic" ) : info.fixMode == 'M' ? tr( "Manual" ) : QLatin1String( "" ) ); // A=automatic 2d/3d, M=manual; allowing for anything else
mTxtFixType->setText( info.fixType == 3 ? tr( "3D" ) : info.fixType == 2 ? tr( "2D" ) : info.fixType == 1 ? tr( "No fix" ) : QString::number( info.fixType ) ); // 1=no fix, 2=2D, 3=3D; allowing for anything else
mTxtQuality->setText( info.quality == 2 ? tr( "Differential" ) : info.quality == 1 ? tr( "Non-differential" ) : info.quality == 0 ? tr( "No position" ) : info.quality > 2 ? QString::number( info.quality ) : QLatin1String( "" ) ); // allowing for anything else
mTxtSatellitesUsed->setText( QString::number( info.satellitesUsed ) );
mTxtStatus->setText( info.status == 'A' ? tr( "Valid" ) : info.status == 'V' ? tr( "Invalid" ) : QLatin1String( "" ) );
} //position
// Avoid refreshing / panning if we haven't moved
if ( mLastGpsPosition != myNewCenter )
{
mLastGpsPosition = myNewCenter;
// Pan based on user specified behavior
if ( radRecenterMap->isChecked() || radRecenterWhenNeeded->isChecked() )
{
QgsCoordinateReferenceSystem mypSRS = mpCanvas->mapSettings().destinationCrs();
QgsCoordinateTransform myTransform( mWgs84CRS, mypSRS ); // use existing WGS84 CRS
QgsPointXY myPoint = myTransform.transform( myNewCenter );
//keep the extent the same just center the map canvas in the display so our feature is in the middle
QgsRectangle myRect( myPoint, myPoint ); // empty rect can be used to set new extent that is centered on the point used to construct the rect
// testing if position is outside some proportion of the map extent
// this is a user setting - useful range: 5% to 100% (0.05 to 1.0)
QgsRectangle myExtentLimit( mpCanvas->extent() );
myExtentLimit.scale( mSpinMapExtentMultiplier->value() * 0.01 );
// only change the extents if the point is beyond the current extents to minimize repaints
if ( radRecenterMap->isChecked() ||
( radRecenterWhenNeeded->isChecked() && !myExtentLimit.contains( myPoint ) ) )
{
mpCanvas->setExtent( myRect );
mpCanvas->refresh();
}
} //otherwise never recenter automatically
if ( mCbxAutoAddVertices->isChecked() )
{
addVertex();
}
} // mLastGpsPosition != myNewCenter
// new marker position after recentering
if ( mGroupShowMarker->isChecked() ) // show marker
{
if ( validFlag ) // update cursor position if valid position
{
// initially, cursor isn't drawn until first valid fix; remains visible until GPS disconnect
if ( ! mpMapMarker )
{
mpMapMarker = new QgsGpsMarker( mpCanvas );
}
mpMapMarker->setSize( mSliderMarkerSize->value() );
mpMapMarker->setCenter( myNewCenter );
}
}
else
{
if ( mpMapMarker )
{
delete mpMapMarker;
mpMapMarker = nullptr;
}
} // show marker
}
